/Engine/Plugins/Media/PixelCapture/Source/PixelCapture/Public/PixelCaptureCapturerLayered.h
Try to read the result of the capture process. May return null if no output has been captured yet.
The captured frame layer if one exists. Null otherwise.
[TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [IPixelCaptureOutputFrame](API\Plugins\PixelCapture\IPixelCaptureOutputFrame) > ReadOutput ( int32 LayerIndex )